1163258187240 has 32 divisors (see below), whose sum is σ = 3489774562080. Its totient is φ = 310202183232.

The previous prime is 1163258187193. The next prime is 1163258187241. The reversal of 1163258187240 is 427818523611.

It is a super-2 number, since 2×1163258187240² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1163258187240.

It is not an unprimeable number, because it can be changed into a prime (1163258187241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4846908994 + ... + 4846909233.

It is an arithmetic number, because the mean of its divisors is an integer number (109055455065).

Almost surely, 2^{1163258187240} is an apocalyptic number.

1163258187240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163258187240 is an abundant number, since it is smaller than the sum of its proper divisors (2326516374840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1163258187240 is a wasteful number, since it uses less digits than its factorization.

1163258187240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9693818241 (or 9693818237 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 1163258187240 in words is "one trillion, one hundred sixty-three billion, two hundred fifty-eight million, one hundred eighty-seven thousand, two hundred forty".